Path: csiph.com!news.mixmin.net!weretis.net!feeder1.news.weretis.net!feeder.erje.net!1.eu.feeder.erje.net!fu-berlin.de!uni-berlin.de!not-for-mail From: Antoon Pardon Newsgroups: comp.lang.python Subject: Re: static variables Date: Wed, 02 Dec 2015 10:47:15 +0100 Lines: 37 Message-ID: References: <565cf163$0$1612$c3e8da3$5496439d@news.astraweb.com> <565e4329$0$1612$c3e8da3$5496439d@news.astraweb.com> <565e4861$0$1587$c3e8da3$5496439d@news.astraweb.com> <565EAA1D.501@rece.vub.ac.be> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Trace: news.uni-berlin.de Wls7iiPE3VAfaezrYsvLgw4xOCK3VOp37JZTZ90NeiCw== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'static': 0.03; 'args': 0.04; 'received:134': 0.05; 'attributes': 0.07; 'executable': 0.07; 'python': 0.10; 'python.': 0.11; 'def': 0.13; 'wed,': 0.15; 'argument': 0.15; 'declaration': 0.16; 'defaults,': 0.16; 'foo()': 0.16; 'foo():': 0.16; 'received:ac.be': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'somewhere.': 0.16; 'statement.': 0.16; 'wrote:': 0.16; 'variable': 0.18; 'changes': 0.20; '2015': 0.20; 'otherwise,': 0.20; 'skip:" 30': 0.20; 'meant': 0.22; 'function,': 0.22; 'visible': 0.22; 'code.': 0.23; 'defined': 0.23; 'dec': 0.23; 'header:In-Reply-To:1': 0.24; 'header:User-Agent:1': 0.26; 'chris': 0.26; 'function': 0.28; 'initialized': 0.29; 'too.': 0.30; 'received:be': 0.30; 'probably': 0.31; 'statement': 0.32; 'lets': 0.33; 'could': 0.35; 'done': 0.35; 'something': 0.35; 'instead': 0.36; '(and': 0.36; 'keyword': 0.36; 'totally': 0.36; 'to:addr:python-list': 0.36; 'pm,': 0.36; 'subject:: ': 0.37; 'being': 0.37; 'goes': 0.39; 'to:addr:python.org': 0.40; 'where': 0.40; 'your': 0.60; 'body': 0.61; 'default': 0.61; 'more': 0.63; 'talking': 0.67; 'obvious': 0.76; 'angelico:': 0.84; 'pardon': 0.84; 'schreef': 0.84; 'write:': 0.91; 'have.': 0.93 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AusFAHK9XlaGuA9G/2dsb2JhbABehFYBJcADhg4CghsBAQEBAQGFPwEBAQMBI1UGCwsYAgIFFgsCAgkDAgECAUUTBgICF4gMCK1zjH2EBQEBCAIhgQGFU4R9hSeCToFEBZZcjTuBW4c2j2eDcmOEBXEBhW4BAQE User-Agent: Mozilla/5.0 (X11; Linux i686; rv:31.0) Gecko/20100101 Icedove/31.8.0 In-Reply-To: X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com comp.lang.python:99861 Op 02-12-15 om 10:23 schreef Chris Angelico: > On Wed, Dec 2, 2015 at 7:21 PM, Antoon Pardon > wrote: >> I think python is unsuited for an obvious solution for static locals. >> Because you need to initialise your static variable somewhere. If you >> initialise whithin the body of your function, you will have a statement >> that is essentialy a declaration instead of an executable statement. >> Which goes totally against the dynamic nature op python. > It ought to be initialized at the same time the function is defined - > just like argument defaults, only without them being visible as > arguments. I am not talking about the time. That could be done with something declarative too. I am talking about where to put in the code. > If Python had a keyword that meant > "currently-executing-function", that would work out well for > attributes (and might also make recursion more optimizable); > otherwise, default args are probably the cleanest way we have. No it wouldn't. Lets call that keyword cef. The fact that you can write: def foo(): cef.attr instead of def foo() foo.attr changes nothing about foo.attr being globally accessible. -- Antoon.